Factorising and dividing a2-7 a-10 by a-5 gives-A- a -1B- 2C- a -2D- 1

The correct option is C a+2 a^2+7a+10 = a^2+5a+2a +10 = a(a+5) + 2(a+5) = (a+2)(a+5) Dividing this by (a+5) gives (a+2). ...

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Difference of Two Squares

Factorising a...

Question

Factorising and dividing $a^{2} + 7 a + 10$ by (a + 5) gives:

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a+1

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a+2

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